Hi @rodsman!
Can you let me know the name of the station(s) you were listening to when trying to thumb on Alexa? Can you also let me know the exact voice command used and what Alexa said?
As Adam mentioned, thumbs are only available on Stations and not available for any on-demand content, such as playlists, albums or songs.
In the meantime, you can log into your Amazon account to view what Alexa thinks you said, in order to report feedback to Amazon directly. This is referred to as your "Utterance History report."
To view your utterance history report, click this link from a computer and log into your Alexa account. Or from a mobile device launch the Alexa app, tap the Menu icon, select Activity and then More under Pandora activity.
From here you'll be able to view what Alexa thought she heard, as well as listen to a recording of what you said. If she didn't do what you wanted, be sure to let Amazon know by selecting No.
Pandora stations are designed to introduce you to new music through the artists and songs that you know and love. Checking your recent play history I see that you've listened to a few stations mixed in with some on-demand content.
If you feel a station was playing only one artist more frequently, let me know the name of the station and I'll have a closer look.
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